C449 Ground Gas

"What did you learn?" Su Tong didn't quite get it, "With your current speed, it should be easy for you to shrink the ground, right? It will be very fast within a certain distance, but once it's outside of a certain range, it will take up a lot of time and space. If you want to cross half of the Earth, you might not even be able to reach it within a day with the Earth Shrinking Art